Teach me to make granola bars

I need a chef/baker to teach me to make healthy delicious snacks (sugar free) especially granola bars. It must be in person, face to face. Need someone with experience in granola bars especially because I'm looking for subtlety and excellence in taste, texture and appearance. I will give you a sample of a granola bar and i need you to show me how to make it exactly, plus a few variations.